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// Import dependencies
const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const dotenv = require('dotenv');

// Load environment variables (optional, for MongoDB URI)
dotenv.config();

// Initialize the Express app
const app = express();

// Middleware to parse form data (bodyParser)
app.use(bodyParser.urlencoded({ extended: true }));

// MongoDB connection (offline MongoDB)
mongoose.connect(process.env.MONGODB_URI || 'mongodb://localhost:27017/contactDB', {
  useNewUrlParser: true,
  useUnifiedTopology: true,
})
  .then(() => console.log('Connected to MongoDB'))
  .catch((err) => console.error('MongoDB connection error:', err));

// Define the contact schema and model
const contactSchema = new mongoose.Schema({
  fullname: String,
  email: String,
  message: String,
});

const Contact = mongoose.model('Contact', contactSchema);

// Route to handle form submission
app.post('/submit-form', async (req, res) => {
  try {
    // Extract form data
    const { fullname, email, message } = req.body;

    // Create a new contact document
    const contact = new Contact({
      fullname,
      email,
      message,
    });

    // Save the contact to the MongoDB database
    await contact.save();

    // Send success response
    res.send('<p class="message">Thank you! Your message has been submitted successfully.</p>');
  } catch (error) {
    console.error('Error saving contact:', error);
    res.status(500).send('Error saving contact');
  }
});

// Start the server
const port = process.env.PORT || 3000;
app.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});